Your comment was flagged by several members of the community who all have a solid track record for flagging things due to being in breach of the guidelines (rather than due to disagreement, spite etc). So I'm not out of step with community standards here.
> Leaving one sided statements up like the GP is not a discussion.
Other comments in the subthread have also been flagged and killed, and I may reply to them also. I replied to yours because I saw it before the others and because its's clearly a party-political, inflammatory comment, and you are a repeat offender when it comes to guidelines breaches. In just the past 18 months, dang or I have asked you five times now to improve your conduct on HN.
> It's a political discussion, either allow it fully or don't.
> Referencing the morals of the same justification for slavery is a valid point.
The validity of an argument is a separate matter to whether it is expressed in an inflammatory way. We want to be able to discuss difficult topics on HN, and that can only happen if people are going to respect the guidelines and make the effort to discuss things with sensitivity and curiosity, rather than combativeness.
If you are only able to discuss difficult political topics in a combative style, HN is not the right place for you to participate.
OK, I can accept that you didn't know, and that you don't intend to cross the line, but that just indicates you're not aware of what's expected here and you need to learn, and to make an ongoing effort to stay well inside the bounds.
A line like “Whether it's slaves or illegals, it's still wrong” will always be classed as an inflammatory statement on HN.
> I never attack a person directly
That style of rhetoric in the reply is hostile to the parent; we often don't know how hostile our words can seem to the person on the receiving end of them; they don't seem so bad when they're just thoughts in our own mind.
> even though I have witnessed it being done and others have done it to me.
You should flag things or report them to us at hn@ycombinator.com so we can investigate and act where needed.